The challenges faced with regard to controlling weeds in soybean and corn plantations are significant. In order to ensure a high profitability level of productive systems, new technologies are emerging in order to help farmers in weed control activities for these plantations. These technologies include Enlist®, by Corteva Agriscience, and Intacta 2 Xtend®, by Bayer CropScience.
Regarding Enlist®, the company that holds the product registration confirms the efficiency of the technology used in the herbicide as well as the one used in seeds for soybean and corn plantations. The Enlist® E3 soybean seeds will be resistant to three herbicides (glyphosate, 2,4-dichlorophenoxyacetic acid and glufosinate-ammonium). Along with this technology, a new 2,4-D salt (choline salt) was released, both isolated and mixed with glyphosate (Enlist®, Enlist® Colex-D and Enlist® Duo Colex-D herbicides), with an innovative formulation process that provides a decrease in herbicide drift, little odor and very low volatility, maintaining the same level of weed control obtained by using traditional 2,4-D-based products.
For corn plantations, seeds with a technology named PowerCore Ultra Enlist® will be resistant to four herbicides (glyphosate, 2,4-dichlorophenoxyacetic acid, glufosinate-ammonium and haloxyfop) the latter being an important tool in controlling grasses, such as Digitaria insularis (sourgrass) in post-emergence phases in corn plantations. To find out more about this topic, enroll in the Phenology and Ecophysiology of Corn course.
In addition to promoting tolerance to glyphosate, like RR® soybeans, the Xtend® technology for soybean plantations also promotes tolerance to Dicamba, which belongs to the group of auxinic herbicides. According to the company that holds the product registration, this technology can be used as an excellent tool in controlling broadleaved weeds resistant to glyphosate, such as Conyza spp. (horseweed) e Amaranthus spp. (Slender amaranth).
Both technologies are good alternatives when controlling weeds found in production areas, the plantation being managed free of weeds, resulting in the preservation of high productivity levels and commercial gains. However, it must be used in the field in a technical fashion at all times in order to prevent potential issues in surrounding areas that do not use this technology, the main risks being associated to herbicide drift and/or the volatility of the herbicides used. Thus, it is important to pay close attention to all specifications and recommendations made by manufacturers when using these technologies, especially in terms of environmental conditions when applying the product and the application technology used in the field.
It is also important to highlight that, although these are very important technologies, farmers must carry out a preliminary desiccation before planting in an efficient way, using the recommended products and dosages, thus avoiding the use of post-emergence technologies.
The events, which will be held at the farms of SLC Agrícola, will feature lectures and tours of the research areas
Researcher explains how soil management and analysis offer an advantage
Soybean, sugarcane and corn are the crops with the highest impact on Brazil’s economy, according to the latest Agricultural Census.